Air-gun.



W. B. GREENLEAF & E. S. ROE.

AIR GUN.

APPLICATION FILED 1ULY !7|19l6.

Patented June 4, 1918.

2 SHEETS-SHEET I.

W m M Mil 20777 .5 6 Zrnesfi 5.

W. B. GREENLEAF & E. S ROE.

AIR GUN.

APPLICATION FILED JULY 17.1916.

Patented June 4, 1918 2 SHEETSSHEET 2- 3140mm m'lliam 5. GreznZeaf E???est 5. 306

WILLIAM B. GREENLEAF AND ERNEST S. ROE, OF PLYMOUTH, MICHIGAN, ASSIGNORSFl lfihl.

TO THE MARKHAM AIR RIFLE COMPANY, OF PLYMOUTH, MICHIGAN, A CORPORA- TIONOF MICHIGAN.

AIR-GUN.

Patented June a, 1918.

Application filed July 17, 1916. Serial No. 109,775.

To all whom it may concern:

Be it known that we, WILLIAM B. GREEN- LEAF and ERNEST S. Ron, bothcitizens of the United States of America, residing at Plymouth, in thecounty of'Wayne and State of Michigan, have invented certain new anduseful Improvements in Air-Guns, of which the following is aspecification, reference being had therein to the accompanying drawmgs.

This invention relates to gun constructions and refers more particularlyto what is known as air guns or rifles of the break down tfiype,although the invention in certain of its aspects is not limited to thisparticular type of gun.

It is among the objects of the invention to provide an improved air gunof that type in which the gun is cooked by what is known asbreaking-down the barrel. In guns of this character it is necessary toprovide means for locking the two parts of the barrel in true alinement,and the present invention particularly contemplates an improved lockingmechanism for this purpose. Other objects of the invention are toprovide a longitudinally-adjustable member, operable from a convenientposition, for looking the two parts of the barrel in true .alinement;to.provide a self-contained unit. for the spring and locking mechanism;to provide an improved bullet or dart holding means and triggerconstruction; and in general to provide an improved air gun of thecharacter above referred to.

In the drawings: 1

Figure 1 is a side elevational View of an. air gun embodying ourinvention;

Fig. 2 is an enlarged longitudinal section through the parts shown inFig. 1;

Fig. 3 is a cross sectional view on the line w-m of Fig. 2;

Fig. 4 is a perspective viewof various parts detached.

Fig. 5 is an enlarged detail of the locking mechanism.

A represents the usual stock of the gun. and B the barrel sectionthereof. At its forward end the stock is provided with a casing Cforming the housing for the trigger mechanism, spring and other parts ashereinafter set forth. The barrel is pivoted at D to the forward end ofthe casing C and the break-down movement of the barrel about the pivot Dis utilized for actuating a lever E, secured at F to a flange G on thebarrel. The rear end of this lever extends through a longitudinal slotin the lower part of the casing C, and as the barrel is rocked about itspivot D the lever E forces the spring I back under compression until thehook K catches upon the latch K of the trigger K. j

The lever is then moved back to an inoperative position as the barrelreturns into alinement with the casing C, and the present inventionparticularly contemplates an improved locking mechanism for holding thebarrel in true alinement with the casing. In detail, the mechanism forthis purpose comprises a longitudinally-adjustable casing which ismovable to a position into the end of the barrel so as to bridge thejoint between the barrel and easing. For projecting and retracting thislongitudinal-adjustable member we employ the following arrangement.

Positioned within the casing C and longitudinally movable therein is asecond casing M which at its forward end fits into a seat N in the rearend of the barrel B. Thus when the casing M is in its forward positionit bridges the meeting joint between the barrel and casing C, and holdsthe barrel in true alinement with the casing. At its rear end the casingM is provided with a transverse slot slightly inclined with reference tothe axis of the casing and through this slot there projects a pin N Thispin also projects through a straight transverse slot in the casing C andat its lower end is pivotally held into position by a screw or bolt Oprojecting through the stock A.

Whenever it is desired to break-clown the barrel for cocking the gun thepin N is moved laterally and acting on the inclined slot in the casing Mwill withdraw the easing out of the seat N in. the barrel. The barrel isthen swung about its pivot D and through the action of the lever Eforces the plunger P back against the spring I, put- J ting the springunder compression and moving the hook K 1nto loclnng engagement lockedby adjusting the forward end of the casing M into the seat N, by movingthe pin N 2 over to the opposite end of the transverse slot.

As it is necessary that the parts he held in rigid relation when the gunis shot we preferably employ an abutment Q in the end of the casing Mwhich in the alined position 01 the parts engages a correspondingabutment Q, carried by the true barrel Z and normally spring-pressedrearward by a coil spring 1%. This abutment Q is fixed on the truebarrel Z, which barrel together with the abutment Q, is slidable in theouter barrel section B, the true barrel being of double wall thicknessto provide greater strength. Thus the forward adjustment of the casing Mwill'iorce the abutments into contact and carry the abutment Q backagainst the tension oi the spring R, this yieldably holding theabutments against each other.

F or limiting the forward movements of the abutment Q I preferablyutilize the sight member S which is formed with a flange S projectingthrough a slot S in the barrel a suiiicient distance to form the stopfor the abutment Q. It will be noticed that the casing M also forms ahousing for the main spring of the gun and this casing is furtherprovided with depending flanges T and T which have longitudinal slots Uand U forming the bearing in which the pin U of the lever slides. Thiscasing also carries the trigger, the pin of which extends throughbearings V and V in the flanges T and T. The usual trigger guard Y isemployed, this guard being secured at both ends to the casing C Forreturning the trigger to its operative position after it has beenpulled, the spring W is employed, this spring being secured to a flangeW on the trigger and a flange W on the casing M, the arrangement beingsuch that the spring is placed under compression when the trigger isdrawn backward. The carrying of the trigger mechanism and the spring Iby the casing M allows these parts to be assembled and attached as aunit by removing the securing members X and X, and O and withdrawingthe. stock A from the casing C.

The abutment Q is swaged or otherwise fixedly secured on the true barrelZ and the abutment Q is provided with an aperture Z registering with thebore of the true barrel Z, which latter is provided with means forholding the bullet or dart in place. In detail the holding mechanismcomprises a light spring member Z locked in place by the abutment Q whenthe latter is fixed on the inner or true barrel Z, which spring exertssufhcient pressure on the side of the bullets or darts to hold them inposition until they are propelled forward by the air pressure producedin the usual manner upon releasing the spring when the trigger ispulled.

The arrangement of the spring and plunger within the self-contained unitconstruction has a further advantage, that all strains and jars aretaken by the casing as a unit and not by the individual parts of thegun.

What we claim as our invention is;

1. In an air gun, the combination with two sections pivoted together, ofa longitudinally-adjustable member within one of said sections, the endof said member being projectable into the other of said sections, and aspring pressed abutment in the last mentioned section for engaging theend of said member when in its projectedposition.

2. In an air gun, the combination with sections pivoted together, of aplunger in one of the said sections, a casing in said section forming ahousing for said plun er, a spring pressed-abutmentin the other 0 saidsections, and means for adjusting said casing against said springpressed abutment and into locking engagement with the other of saidsections.

3. In an air gun, the combination with sections pivoted together, ofmeans for locking said sections in alinement, comprisinga plunger casingin one of said sections and means for projecting the end of said casinginto the othero'f saidsections;

at. In an air gun, the combination with a barrel section, of a springpressed abutment therein, and a sight member for said barrel sectionforming a stop for limiting the endwise movement of said abutmentmember.

5. In an air gun, the combination with two sections, of relativelymovable abutment's, one of which is spring-pressed against the other toform a tight oint when the sections are locked in shooting position.

6. In an air gun, the combination with sections pivoted together, ofmeans for locking said sections in alinement, comprising a plungermember having a telescopic engagement with one of said sections, meansfor projecting said pluiiger member to have a telescopic engagement withtheother of said sections, and a spring-pressed abutment between theplunger member and the lastmentioned section adapted to be compressed bythe plunger member when in its projected position. i

In testimony whereof we afliX our signatures.

WILLIAM B. GBEENLEAF. ERNEST s. ROE.

Copies of this patent may be obtained for five centseach, by addressingthe dommissinnsr' of Patenta,

Washington, I). 0.

